Maurizio Sarri admitted Chelsea made life difficult for themselves after they reached the semi-finals of the Europa League following a see-saw 4-3 win over Slavia Prague.

With Chelsea leading 1-0 from the first leg, the tie should have been over as a contest after only 15 minutes as they sliced Slavia apart three times.

But Chelsea have developed a nasty habit of conceding early in the second half and once again there were some hairy moments as the visitors hit back twice to trail by just one on the night.